题目内容

An aircraft is required to maintain an assigned heading or altitude restriction _________ it does not conflict with the safe operation of the flight.

As if
B. As though
C. as long as
D. as far as

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When a flight is operating in VMC, crew are responsible for _______ other traffic.

A. to see and to avoid
B. seeing and avoiding
C. see and avoid
D. saw and avoided

In Class A airspace, all operations must be conducted under IFR or SVFR and are _______ to ATC clearance.

A. subjected
B. subjective
C. subject
D. object

Wind shear can subject an aircraft to violent updrafts and downdrafts as well as ________ changes to the horizontal movement of the aircraft.

A. slow
B. dramatic
C. rapid
D. abrupt

While wind shear can occur at any altitude, low-level wind shear is especially hazardous due to the ________of an aircraft to the ground.

A. close
B. proximity
C. approach
D. access